How many lines of symmetry does a square have?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)